20567248

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1621}}^1$

素因数の和:1703

約数の個数: 40

約数和(自身を含む): 43644776

約数和(自身を除く): 23077528

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1586, 1621, 3172, 3242, 6344, 6484, 12688, 12968, 21073, 25936, 42146, 84292, 98881, 168584, 197762, 337168, 395524, 791048, 1285453, 1582096, 2570906, 5141812, 10283624, 20567248]

約数ペア:

[(1, 20567248), (2, 10283624), (4, 5141812), (8, 2570906), (13, 1582096), (16, 1285453), (26, 791048), (52, 395524), (61, 337168), (104, 197762), (122, 168584), (208, 98881), (244, 84292), (488, 42146), (793, 25936), (976, 21073), (1586, 12968), (1621, 12688), (3172, 6484), (3242, 6344)]